Complete with the correct form (Present Perfect Simple or Present Perfect Continuous):
Complete with the correct form (Present
Perfect Simple or Present Perfect Continuous):
1. How long ...................... (you / learn) English?
2. I ...................... (never / see) such a beautiful sunset.
3. My hands are dirty because I ...................... (work) in the garden.
4. Hospitals ...................... (introduce) new technology.
5. Staff ...................... (learn) new skills and training sessions.